Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2006-1651

7.5 · HIGH

Microsoft ISA Server 2004 allows remote attackers to bypass certain filtering rules, including ones for (1) ICMP and (2) TCP, via IPv6 packets.

Published Apr 6, 2006microsoftEPSS 14.95%

Overview

CVE-2006-1651 is a high-severity vulnerability affecting microsoft isa_server. It was published on April 6, 2006 and has a CVSS 2.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Microsoft ISA Server 2004 allows remote attackers to bypass certain filtering rules, including ones for (1) ICMP and (2) TCP, via IPv6 packets. NOTE: An established researcher has disputed this issue, saying that "Neither ISA Server 2004 nor Windows 2003 Basic Firewall support IPv6 filtering ... This is different network protocol.

Remediation

Check the references section for vendor advisories and patches from microsoft. Update isa_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refwww.securityfocus.com/archive/1/429816/100/0/threadedRefwww.securityfocus.com/archive/1/429846/100/0/threadedRefwww.securityfocus.com/archive/1/430281/100/0/threadedRefwww.securityfocus.com/archive/1/430684/100/0/threadedRefwww.securityfocus.com/archive/1/429816/100/0/threadedRefwww.securityfocus.com/archive/1/429846/100/0/threadedRefwww.securityfocus.com/archive/1/430281/100/0/threadedRefwww.securityfocus.com/archive/1/430684/100/0/threaded

How CyberStrike helps

Frequently asked questions

What is CVE-2006-1651?

CVE-2006-1651 is a high-severity vulnerability affecting microsoft isa_server. It was published on April 6, 2006 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-2006-1651?

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2006-1651?

Check the references section for vendor advisories and patches from microsoft. Update isa_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2006-1651?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2006-1651 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2006

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999